| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 50.3 | 54.1 | 62.0 | 71.7 | 79.7 | 87.5 | 90.3 | 88.2 | 81.5 | 72.7 | 60.4 | 51.6 | 70.8 |
| Highest Mean Max. Temperature (F) | 60.6 | 63.8 | 70.4 | 77.3 | 86.4 | 96.7 | 96.6 | 92.6 | 88.6 | 80.4 | 67.5 | 58.9 | 73.0 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1978 | 1974 | 1990 | 1980 | 1969 | 1977 | 1963 | 1965 | 1970 | 1977 |
| Lowest Mean Max. Temperature (F) | 38.9 | 42.7 | 51.1 | 62.8 | 75.7 | 82.8 | 85.2 | 82.0 | 73.4 | 65.7 | 49.1 | 42.9 | 68.6 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1980 | 1989 | 1975 | 1971 | 1974 | 1969 | 1972 | 1983 | 1987 |
| Mean Temperature (F) | 35.6 | 39.3 | 46.5 | 56.0 | 64.7 | 73.1 | 76.6 | 74.7 | 67.9 | 57.7 | 46.0 | 37.2 | 56.3 |
| Highest Mean Temperature (F) | 42.3 | 47.7 | 53.4 | 60.7 | 70.4 | 79.8 | 81.0 | 78.4 | 72.5 | 64.0 | 51.9 | 43.3 | 58.3 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1967 | 1974 | 1990 | 1980 | 1969 | 1977 | 1963 | 1965 | 1980 | 1977 |
| Lowest Mean Temperature (F) | 27.7 | 31.2 | 38.8 | 49.3 | 61.5 | 69.4 | 71.8 | 70.6 | 62.0 | 51.3 | 38.3 | 29.3 | 54.3 |
| Year Lowest Occurred | 1979 | 1964 | 1965 | 1973 | 1976 | 1989 | 1989 | 1971 | 1974 | 1976 | 1972 | 1983 | 1987 |
| Mean Min. Temperature (F) | 20.7 | 24.5 | 31.0 | 40.3 | 49.7 | 58.8 | 62.9 | 61.2 | 54.3 | 42.6 | 31.5 | 22.8 | 41.7 |
| Highest Mean Min. Temperature (F) | 26.1 | 31.5 | 36.7 | 45.3 | 54.6 | 62.8 | 65.9 | 64.1 | 57.5 | 47.6 | 36.3 | 27.8 | 43.7 |
| Year Highest Occurred | 1968 | 1976 | 1974 | 1967 | 1977 | 1990 | 1966 | 1977 | 1990 | 1963 | 1978 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 12.8 | 18.3 | 24.1 | 34.3 | 44.6 | 55.0 | 57.1 | 59.2 | 50.5 | 36.8 | 27.1 | 15.6 | 39.8 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1987 | 1983 | 1983 | 1989 | 1971 | 1974 | 1976 | 1976 | 1983 | 1988 |
| Mean Precipitation (in.) | 0.47 | 0.59 | 0.69 | 0.84 | 1.94 | 2.81 | 2.13 | 2.69 | 2.15 | 1.29 | 0.70 | 0.49 | 16.79 |
| Highest Precipitation (in.) | 1.45 | 2.32 | 2.87 | 2.73 | 5.25 | 7.07 | 4.80 | 6.83 | 4.67 | 3.92 | 2.27 | 2.14 | 24.75 |
| Year Highest Occurred | 1987 | 1986 | 1985 | 1973 | 1987 | 1963 | 1982 | 1966 | 1978 | 1985 | 1986 | 1987 | 1985 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.06 | 0.12 | 0.58 | 0.36 | 0.03 | 0.00 | 0.00 | 9.38 |
| Year Lowest Occurred | 1986 | 1972 | 1966 | 1972 | 1970 | 1990 | 1964 | 1973 | 1977 | 1966 | 1989 | 1981 | 1968 |
| Heating Degree Days (F) | 911. | 720. | 574. | 282. | 79. | 7. | 0. | 0. | 32. | 240. | 570. | 862. | 4277. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 70. | 250. | 360. | 301. | 119. | 14. | 0. | 0. | 1126. |